Putting together a Solar System. - A basic, no knowledge assumed, set of instructions that build up from an easy system with a solar panel and battery to a more and more complex one with solar arrays, batteries, charge controllers, inverters and even panel positioning.

Grid-Powered Battery Charger - This is article from Tom Woods is about how to build a controller switch that will connect a grid-powered battery charger to one's solar or wind battery bank. The grid charger kicks in when poor weather conditions do not permit wind or solar energy production. The circuit protects the battery bank from damage due to chronic under charging, and it allows maintaining the loads on the alternative energy circuit even if they temporarily exceed the solar or wind electric production. The circuit is fully automatic.